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Texas Instruments SN74AHC1G32DRLR
- Part No.:
- SN74AHC1G32DRLR
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- SOT-553
- Datasheet:
-
SN74AHC1G32DRLR.pdf
- Description:
- IC GATE OR 1CH 2-INP SOT5
- Quantity:
- Payment:
- Shipping:
Inventory:29,000
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Product details
Overview
SN74AHC1G32 from Texas Instruments is a single 2-input positive-OR gate IC performing Y = A + B logic in CMOS technology, operating from 2 V to 5.5 V supply, with 6.5 ns max propagation delay at 5 V, ±8 mA output drive, and Schmitt-trigger inputs for noise immunity - used in bus interface, level translation, and signal conditioning within portable audio docks and SSD power controllers.
For engineers reviewing the SN74AHC1G32 datasheet, SN74AHC1G32 pinout, SN74AHC1G32 application, or SN74AHC1G32 equivalent, this page delivers verified functional identity, confirmed SOT-5X3 (DRL) package mapping, validated 5-pin terminal roles, real-world timing and drive specs, and two technically documented alternative parts for design flexibility.
Technical Context
The SN74AHC1G32 implements a non-inverting OR logic function using advanced AHC CMOS process, supporting voltage-level translation with 5.5 V-tolerant inputs across its 2–5.5 V VCC range. Its Schmitt-trigger inputs accept slow-rising signals while maintaining clean output transitions.
It features low ICC (≤10 µA), controlled edge rates to minimize ringing, and operates over –40°C to +125°C. The device lacks 3-state capability and relies on external biasing of unused inputs to VCC or GND per TI's functional mode table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input positive-OR gate (Y = A + B); no 3-state or open-drain output |
| Supply Voltage Range | 2 V to 5.5 V - enables direct interfacing between 3.3 V and 5 V domains |
| Max Propagation Delay | 6.5 ns at VCC = 5 V, CL = 15 pF - defines worst-case timing budget for synchronous logic paths |
| Output Drive Strength | ±8 mA at VCC = 5 V - sufficient for light-load fanout but not for driving transmission lines or heavy capacitive loads |
| Input Threshold Behavior | Schmitt-trigger action - provides ≥0.5 V hysteresis, rejecting noise on slow-rising/falling inputs |
| Quiescent Supply Current | ≤10 µA at VCC = 5.5 V - supports ultra-low-power standby modes in battery-powered systems |
| Operating Temperature | –40°C to +125°C - qualified for industrial and extended-temperature embedded applications |
Pinout & Package
SOT-5X3 (DRL) 5-pin surface-mount package: 1.60 mm × 1.60 mm body size, 1.60 mm × 1.20 mm footprint, 0.75 mm nominal cavity depth, tape-and-reel packaging (4000 pcs/reel), moisture sensitivity level 1, peak reflow 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Input A | CMOS-compatible input with Schmitt-trigger hysteresis; accepts up to 5.5 V regardless of VCC |
| 2 (B) | Input B | Second logic input; identical electrical behavior to Pin 1; must be tied high/low if unused |
| 3 (GND) | Ground Reference | Primary return path for supply current and signal reference; requires low-inductance PCB connection |
| 4 (Y) | Output Y | Push-pull CMOS output delivering OR result; no internal pull-up/down; drives to rail |
| 5 (VCC) | Power Supply | Single positive supply input; bypass capacitor (0.1 µF) required adjacent to pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| 5.5 V-tolerant inputs | Enables down-translation from 5 V logic to 3.3 V or 2.5 V systems without external level shifters |
| Low dynamic power consumption | 14 pF typical power dissipation capacitance ensures minimal switching current at 1 MHz |
| Controlled output edge rates | Slower rise/fall times reduce EMI and overshoot on unterminated traces in compact layouts |
| High noise immunity | Schmitt-trigger inputs tolerate >100 ns/V input transition slopes - robust against crosstalk and ground bounce |
| Industrial temperature support | Validated operation from –40°C to +125°C meets requirements for SSD controllers and telecom power modules |
Applications
| Portable Audio Dock Interface | SSD Power Controller Logic |
|---|---|
Use Scenario: Signal arbitration between USB host and auxiliary analog audio source in dual-input docking station. IC Role / Device Role / Timing Role: OR gate combines enable signals from two independent power domains to activate shared amplifier stage. Use Value: 5.5 V-tolerant inputs allow direct connection to 5 V USB VBUS and 3.3 V SoC GPIOs without level-shifting components. |
Use Scenario: Generating combined "power good" assertion for multi-rail SSD power management unit. IC Role / Device Role / Timing Role: Logical OR of individual DC/DC converter OK signals to produce system-level power status flag. Use Value: –40°C to +125°C rating ensures reliable operation inside thermally constrained SSD enclosures during sustained write workloads. |
| Blu-ray Player System Control | Enterprise Tablet I/O Expansion |
Use Scenario: Merging remote control IR decode and front-panel button press signals to wake system from standby. IC Role / Device Role / Timing Role: Single-gate OR function provides glitch-free wake-event aggregation before entering MCU interrupt path. Use Value: Schmitt-trigger inputs reject contact bounce and IR carrier ripple, eliminating need for external RC filtering. |
Use Scenario: Enabling shared peripheral reset line across multiple low-power sensor interfaces in tablet baseband subsystem. IC Role / Device Role / Timing Role: Combines reset assertions from accelerometer, gyroscope, and ambient light sensor into unified reset pulse. Use Value: ≤10 µA ICC allows continuous monitoring during deep-sleep states without compromising battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G32DCKR | Lower VCC range (1.65–5.5 V); faster tPD (4.5 ns @ 3.3 V); higher ICC (max 10 µA same, but typical 1 µA lower) | Better suited for 1.8 V logic domains; less tolerant of sub-2 V brownout conditions | Select when operating below 2 V or requiring tighter timing margins at 3.3 V |
| MC74VHC1G32DTT1G | Same 2–5.5 V range; slightly higher drive (±8 mA @ 5 V same); wider temp range (–55°C to +125°C); different pinout (Pin 3 = VCC, Pin 5 = GND) | Requires PCB layout change; preferred for extended-cold-environment deployments (e.g., outdoor enterprise tablets) | Choose only if cold-temperature resilience below –40°C is mandatory and board revision is feasible |
Compared with SN74AHC1G32, SN74LVC1G32DCKR offers superior speed at lower voltages but reduced noise margin at 2 V, while MC74VHC1G32DTT1G extends operational cold range at the cost of non-pin-compatible layout and sourcing from ON Semiconductor.
Availability
SN74AHC1G32 is available at Aetrix Electronics and suitable for portable audio docks, SSD power controllers, Blu-ray player system control, and enterprise tablet I/O expansion requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for SN74AHC1G32 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions with global manufacturing and quality certification to ISO 9001 and IATF 16949.
The SN74AHC1G32 belongs to TI's AHC logic family, designed for low-power, high-noise-immunity digital interfacing in space-constrained consumer and industrial systems where voltage translation and signal integrity are critical.
FAQ
What logic function does the SN74AHC1G32 implement?
The SN74AHC1G32 implements a single 2-input positive-OR Boolean function: Y = A + B. It outputs high whenever at least one input is high, and low only when both inputs are low. The device uses standard CMOS push-pull outputs with no 3-state capability, and all inputs feature Schmitt-trigger action for noise rejection. This exact behavior is confirmed in TI's SCLS317Q datasheet Section 7.1 and Table 7-1.
What is the correct pinout for SN74AHC1G32 in the DRL package?
The SN74AHC1G32 in SOT-5X3 (DRL) package has Pin 1 = A, Pin 2 = B, Pin 3 = GND, Pin 4 = Y, Pin 5 = VCC - verified in Figure 4-3 and Table 4-1 of the official datasheet. Unlike DBV or DCK variants, the DRL variant places VCC on Pin 5 and GND on Pin 3, with no dedicated thermal pad. This pin assignment is fixed and non-reversible.
Does SN74AHC1G32 support 3.3 V and 5 V mixed-voltage systems?
Yes, SN74AHC1G32 supports mixed-voltage operation: it operates from 2 V to 5.5 V VCC and accepts input voltages up to 5.5 V regardless of supply voltage - enabling direct connection of 5 V signals into a 3.3 V-powered SN74AHC1G32. This down-translation capability is explicitly stated in Section 7.3 and validated in Recommended Operating Conditions (Section 5.3).
Can unused inputs on SN74AHC1G32 be left floating?
No, unused inputs on SN74AHC1G32 must be tied to VCC or GND. Floating inputs cause undefined output states, increased ICC, and potential oscillation due to CMOS input structure. TI mandates this in Section 5.3 Note (1) and Section 8.4.1, citing risk of bus contention and excessive current draw - a requirement directly applicable to every SN74AHC1G32 unit in circuit.
What is the maximum output current rating for SN74AHC1G32?
The absolute maximum continuous output current per pin for SN74AHC1G32 is ±25 mA, and total device current (summed across all pins) must not exceed ±50 mA - per Absolute Maximum Ratings Table 5.1. However, recommended operating conditions limit usable drive to ±8 mA at 5 V (Section 5.3), ensuring reliable performance within specified VOH/VOL windows and thermal limits.
SN74AHC1G32DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AHC
- Package/Case:
- SOT-553
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V ~ 1.65V
- Input Logic Level - High:
- 1.5V ~ 3.85V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-5
SN74AHC1G32DRLR FAQ
1.How can I place an order for SN74AHC1G32DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AHC1G32DRLR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74AHC1G32DRLR reliable?
The price and inventory of SN74AHC1G32DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AHC1G32DRLR is usually 5 days.
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Once your SN74AHC1G32DRLR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74AHC1G32DRLR?
For technical support, including SN74AHC1G32DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AHC1G32DRLR requirements.
6.How does Aetrix verify that SN74AHC1G32DRLR is sourced from the original manufacturer or authorized distributors?
All SN74AHC1G32DRLR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74AHC1G32DRLR meets industry standards.
7.What is the process for return or replacement of SN74AHC1G32DRLR?
All SN74AHC1G32DRLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AHC1G32DRLR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74AHC1G32DRLR part is unused and in its original packaging.
Return procedure for SN74AHC1G32DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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